Brand: Colleen P.Co., LTD.
Made in: Japan
This is a quite rare Japanese pencil with an oversized square ferrule. The top two pencils are identical while the bottom one has several significant changes. There is a PAT number and it is missing the word “The” . Also, the bottom does not have the Japanese writing, but does have the JIS mark on the front rather than the back.
Learn more about vintage Japanese pencils on the BNP blog.
Founded in 1916, Colleen liquidated its assets in 1997. At one time it was considered one of the big three Japanese pencil manufacturers. Interesting to note that in 1982 Colleen flipped its triangular-shaped logo from right to left, and also changed its logotype to a round gothic font.